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The 4,755 Wilf-equivalence classes of permutations of length eight

open access: yes
Vatter's Question 3.1 asks how many Wilf-equivalence classes of length-eight permutations exist. Alex Dobner answered the question in a personal note posted in March 2026: there are exactly 4,755 classes. This deposit is an independent, fully audited confirmation and citable record: the paper (PDF) plus the complete machine-readable certificate archive
openaire   +1 more source

Algorithm-assisted discovery of an intrinsic order among mathematical constants. [PDF]

open access: yesProc Natl Acad Sci U S A
Elimelech R   +8 more
europepmc   +1 more source

Families of Shape-Wilf-Equivalent Claw-Shaped Partially Ordered Patterns

open access: yes
Partially ordered patterns (POPs) generalize classical permutation patterns and have been extensively studied in the contexts of permutations, words, compositions, and partitions. Burstein, Han, Kitaev, and Zhang established the shape-Wilf-equivalence for individual claw-shaped POPs.
openaire   +2 more sources

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